package com.lzc.shell.controller;

import com.lzc.shell.constant.CookieConstant;
import com.lzc.shell.constant.RedisConstant;
import com.lzc.shell.dataobject.SellerInfo;
import com.lzc.shell.enums.ResultEnum;
import com.lzc.shell.service.SellerService;
import com.lzc.shell.util.CookieUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Controller
@RequestMapping("/seller")
public class SellerUserController {

    @Autowired
    private SellerService sellerService;

    @Autowired
    private StringRedisTemplate redisTemplate;

    @GetMapping("/login")
    public ModelAndView login()
    {
        return new ModelAndView("login");
    }

    @PostMapping("/dologin")
    public ModelAndView dologin(@RequestParam("openid")String openid, Map<String,Object>map, HttpServletResponse response)
    {
        //1.openid和数据库进行匹配
        SellerInfo sellerInfo = sellerService.findSellerInfoByOpenid(openid);
        if(sellerInfo == null){
            map.put("msg", ResultEnum.LOGIN_FAIL.getMessage());
            map.put("url","/sell/seller/order/list");
            return new ModelAndView("common/error",map);
        }
        //2.设置token至redis
        String token = UUID.randomUUID().toString();
        Integer expire = RedisConstant.EXPIRE;

        redisTemplate.opsForValue().set(String.format(RedisConstant.TOKEN_PREFIX,token),openid,expire, TimeUnit.SECONDS);

        //3.设置token至cookie
        CookieUtil.set(response, CookieConstant.TOKEN, token, expire);
        return new ModelAndView("redirect:"+"http://localhost:8080/sell/seller/order/list");
    }

   @GetMapping("/logout")
    public ModelAndView logout(HttpServletRequest request,HttpServletResponse response,Map<String,Object>map)
   {
       //1. 从cookie里查询
       Cookie cookie = CookieUtil.get(request, CookieConstant.TOKEN);
       if (cookie != null) {
           //2. 清除redis
           redisTemplate.opsForValue().getOperations().delete(String.format(RedisConstant.TOKEN_PREFIX, cookie.getValue()));
           //3. 清除cookie
           CookieUtil.set(response, CookieConstant.TOKEN, null, 0);
       }
       map.put("msg", ResultEnum.LOGOUT_SUCCESS.getMessage());
       map.put("url", "/sell/seller/order/list");
       return new ModelAndView("common/success", map);
   }

}
